LINAC2012 - List of Authors (Wiesner, C.)

Paper	Title	Page
MO3A03	FRANZ – Accelerator Test Bench and Neutron Source	130
	O. Meusel, L.P. Chau, M. Heilmann, H. Podlech, U. Ratzinger, K. Volk, C. Wiesner IAP, Frankfurt am Main, Germany
	The challenge of existing and planned neutron sources is to provide highly brilliant ion beams with high reliability. The Frankfurt neutron source FRANZ is not only a neutron source but also a test bench for novel accelerator and diagnostic concepts for intense ion beams. The experiment consists of a compact linear accelerator test bench for the acceleration of an intense proton beam to 2 MeV producing the neutrons via the ⁷Li(p,n) reaction. The final beam intensity will be 200 mA, therefore the space charge and space charge compensation effects can be studied with high statistical relevance along the accelerator. The low energy beam transport LEBT is equipped with four solenoids matching the beam into the chopper system and into the RFQ-IH combination already under construction. The coupling of the RFQ accelerator stage and the IH drift tube cavity offers the possibility to use only one power amplifier as a driver for both of these resonators and reduces investment costs. The compact design of this low-β accelerator stage is optimized for high beam intensities to overcome the strong space charge forces expected in this accelerator test bench.

Paper

Title

Page

FRANZ – Accelerator Test Bench and Neutron Source

130

O. Meusel, L.P. Chau, M. Heilmann, H. Podlech, U. Ratzinger, K. Volk, C. Wiesner
IAP, Frankfurt am Main, Germany

The challenge of existing and planned neutron sources is to provide highly brilliant ion beams with high reliability. The Frankfurt neutron source FRANZ is not only a neutron source but also a test bench for novel accelerator and diagnostic concepts for intense ion beams. The experiment consists of a compact linear accelerator test bench for the acceleration of an intense proton beam to 2 MeV producing the neutrons via the ⁷Li(p,n) reaction. The final beam intensity will be 200 mA, therefore the space charge and space charge compensation effects can be studied with high statistical relevance along the accelerator. The low energy beam transport LEBT is equipped with four solenoids matching the beam into the chopper system and into the RFQ-IH combination already under construction. The coupling of the RFQ accelerator stage and the IH drift tube cavity offers the possibility to use only one power amplifier as a driver for both of these resonators and reduces investment costs. The compact design of this low-β accelerator stage is optimized for high beam intensities to overcome the strong space charge forces expected in this accelerator test bench.